The correct statement regarding the counter current exchange in fish gills are It is a very efficient way to capture oxygen from water, Water flows across the lamellae in the opposite direction of blood flow, Oxygen diffuses into the capillaries across the lamellae, because even as oxygen is depleted, it is still at higher concentration than in the Inflowing blood
Gills are used by fish to exchange gas. Gills have a lot of folds, which increases their surface area. They can extract oxygen at a rate that is three times faster than that of a human because the water flows past their gills in the opposite direction from the blood (this is known as countercurrent flow). Blood always flows close to water that has given up less oxygen due to the fact that it moves in the opposite direction of the water. In this manner, the blood is able to take in more and more oxygen as it flows. Even as the blood, which is about 80% oxygenated, travels to the lamella's conclusion, it passes water, which is at the lamella's beginning and is 90% oxygenated.Even as the blood, which is around 80% oxygen-saturated, approaches the lamella's end, it is passing water, which is 90–100% oxygen-saturated at the lamella's beginning. Because there is still a concentration gradient, the blood can continue to receive oxygen from the water even after it is highly saturated and has passed through most of the lamellae.
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They change the air from water vapor (gas) to liquid water. This can produce clouds you see in the sky or dew or fogs.
Answer: With gene therapy
Explanation:
Manipulation of DNA or RNA is used to treat disease with gene therapy. This type of therapy is introducing genetic material into cells because it should compensate for abnormal genes or it should also make a beneficial protein.
Gene therapy is able in some cases to introduce a normal copy of the gene and after that, it can restore the function of the protein.
Answer:
DNA sợi đôi hấp thụ kém mạnh hơn vì tương tác xếp chồng giữa các base.
Explanation:
Quá trình này được gọi là sự thay đổi siêu sắc tố. Các gốc purine và pyrimidine trong DNA hấp thụ tia cực tím.
I believe it'd decrease. Many species would either take a major population hit depending on the range of the fire or some species would have to move from the area entirely.
